inline call_mux_method
Optimization

- IS_CONSISTENT is not enabled if php is compiled with --enable-debug
- Use zend_hash_num_elements instead of zend_hash_has_more_elements
- Pass ce_pux_mux class entry directly.
Optimization

- call get_mux_function_entry if we already now the method name.
Add bench.php for benchmark
Merge remote-tracking branch 'origin/master' into persistent-dispatcher

Conflicts:
	ext/php_functions.c
Delete php_functions.c
Improve compile script